|本期目录/Table of Contents|

[1]焦晓霞,管春伟,李伟力,等.汽轮发电机不同冷却介质对定子传热特性的影响[J].电机与控制学报,2011,(02):54-52.
 JIAO Xiao-xia,GUAN Chun-wei,LI Wei-li,et al.Influences of different cooling medium in turbo-generator on stator heat transfer characteristics[J].,2011,(02):54-52.
点击复制

汽轮发电机不同冷却介质对定子传热特性的影响(PDF)
分享到:

《电机与控制学报》[ISSN:1007-449X/CN:23-1 408/TM]

卷:
期数:
2011年02
页码:
54-52
栏目:
出版日期:
2011-02-20

文章信息/Info

Title:
Influences of different cooling medium in turbo-generator on stator heat transfer characteristics
作者:
焦晓霞; 管春伟; 李伟力; 郑萍;
哈尔滨电机厂有限责任公司; 哈尔滨工业大学电气工程及自动化学院; 哈尔滨理工大学电气与电子工程学院;
Author(s):
JIAO Xiao-xia1; GUAN Chun-wei2; LI Wei-li3; ZHENG Ping2
1.Harbin Electric Machinery Company Limited; Harbin 150040; China; 2.Electrical Engineering and Automation; Harbin Institute of Technology; Harbin 150001; 3.School of Electrical and Electronic Engineering; Harbin University of Science and Technology; Harbin 150080; China
关键词:
汽轮发电机 空冷 氢冷 流体场 温度场 散热系数 绝缘温降
Keywords:
turbine generator air cooling hydrogen cooling fluid field temperature field heat transfer coefficient insulation temperature drop
分类号:
TM311
DOI:
-
文献标志码:
A
摘要:
为研究大型汽轮发电机通风冷却系统对电机定子区域的冷却情况,研究不同冷却介质对电机温度分布的影响,以200MW汽轮发电机为例,建立半个轴向段的多风路通风系统三维流动与传热耦合的物理模型和数学模型,采用数值方法对采用不同冷却介质的电机流体场和温度场进行了耦合计算,定量分析空气和氢气冷却能力对电机温升的影响。分析流体性质的改变对气隙轴向流速分布和不同通风沟入口风速的影响;计算得到了流固耦合面上的散热系数的具体分布;分析定子主绝缘的温降变化,发现氢冷时绝缘温差比空冷时要低13℃,有助于减小热应力对绝缘造成的损害。
Abstract:
In order to research the influences of large turbine generator ventilating system on the stator cooling and stator temperature distribution,taking 200MW turbine generator for example,the mathematical and physical model for 3D fluid and temperature coupling analysis of stator multipath ventilation system of half axial section was established.The fluid and temperature fields of motor with different cooling medium were coupled calculated using numerical method.The influence of hydrogen and air cooling capacity...

参考文献/References:

-

相似文献/References:

[1]国建鸿,傅德平,李振国,等.大型蒸发冷却汽轮发电机定子绕组温度计算[J].电机与控制学报,2008,(05):509.
 GUO Jian-hong,FU De-ping,LI Zhen-guo,et al.Calculation of temperature distribution in the stator of larger evaporative cooling turbo-generator[J].,2008,(02):509.
[2]梁艳萍,王鸿鹄,张建涛,等.空冷汽轮发电机端部电磁场与涡流损耗研究[J].电机与控制学报,2010,(01):29.
 LIANG Yan-ping,WANG Hong-hu,ZHANG Jian-tao,et al.Research of end fields and eddy current losses for air-cooling steam-turbo-generator[J].,2010,(02):29.
[3]刘晓芳,康锦萍,罗应立,等.汽轮发电机在饱和与磁场畸变时负载励磁电流计算的新方法[J].电机与控制学报,2010,(08):7.
 LIU Xiao-fang,KANG Jin-ping,LUO Ying-li,et al.[J].,2010,(02):7.
[4]李伟力,孙宏丽,于海涛,等.汽轮发电机定子绕组异结构饱和参数与温度场计算[J].电机与控制学报,2011,(03):25.
 LI Wei-li,SUN Hong-li,YU Hai-tao.Calculation of saturation parameters and temperature field for turbo-generator stator winding with different structure[J].,2011,(02):25.
[5]何玉灵,万书亭,唐贵基,等.定子匝间短路对发电机并联支路环流特性的影响[J].电机与控制学报,2013,(03):1.
 HE Yu-ling,WAN Shu-ting,TANG Gui-ji,et al.Effects of stator interturn short circuit on the circulating current inside the parallel branch loop[J].,2013,(02):1.
[6]武玉才,李永刚,李和明,等. 复合故障下的汽轮发电机转子电磁力研究[J].电机与控制学报,2013,(06):1.
 WU Yu-cai,LI Yong-gang,LI He-ming,et al.[J].,2013,(02):1.
[7]梁艳萍,侯宇. 转子磁路结构对汽轮发电机同步电抗的影响[J].电机与控制学报,2013,(07):34.
 LIANG Yan-ping,HOU Yu.[J].,2013,(02):34.
[8]赵伟铎,刘玉新,杜博超,等. 大型汽轮发电机环形引线汽堵故障分析[J].电机与控制学报,2014,18(04):39.
 ZHAO Wei-duo,LIU Yu-xin,DU Bo-chao,et al. Analysis of steam blockage faults of large turbogenerator circular lead[J].,2014,18(02):39.
[9]李辉,陈耀君,李洋,等. 双馈风电场并网对汽轮发电机次同步振荡的影响[J].电机与控制学报,2015,19(06):47.[doi:10. 15938/j. emc.2015.06.008]
 LI Huil,CHEN Yao-jun,LI Yang,et al. Impact of DFIG-based wind farms interconnected to powergrid on subsynchronous oscillation of turbogenerator[J].,2015,19(02):47.[doi:10. 15938/j. emc.2015.06.008]
[10]吕艳玲,戈宝军. 大型汽轮发电机带负荷失磁模型建立与分析[J].电机与控制学报,2015,19(06):22.[doi:10. 15938/j. emc.2015.06.004]
 LV Yan-ling,GE Bao-jun. Model of large steam turbine generator with load loss ofexcitation and analysis of loss of excitation process[J].,2015,19(02):22.[doi:10. 15938/j. emc.2015.06.004]

备注/Memo

备注/Memo:
国家自然科学基金(51077031); 黑龙江省教育厅振兴老工业基地项目(1153gz01,1153gc01)
更新日期/Last Update: 2011-06-30